There are many video resources provided by Google on some key things to note for marketers that would be interested to look into SEO improvements. Eysy Digital has shortlisted a few of our favourites here in this article.
SEO for startups in under 10 minutes - by Google Webmasters - published on June 25, 2012
How search works - by Google - published on March 4, 2010
Build a successful web presence with Google Search (Google I/O '18) - by Google Webmasters - Published on May 10, 2018